Steel Angle Connection


The SWA+ program is used to design pinned beam connections using angles in steel construction. The connection can be configured with or without a notch. The notch can be arranged either on one or both sides.

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The material can be chosen differently for the main beam, secondary beam and angle.

  • Structural steel (S235, S275, S355, S450)
  • Structural steel annealed (S275N – S460N)
  • Structural steel thermo (S275M – S460M)
  • Structural steel weatherproof (S235W – S355W)
  • Creep resistant steel (S460Q – S460QL1)
  • Hollow section warm (S235H – S355H)
  • Hollow section warm N (S275NH – S460NH)
  • Custom steel type
Structural System
  • Beam connection with angle with and without beam notch
  • Angle geometry and bolt patterns can be specified or taken from the connection configuration catalog

Beam sections

  • I-sections as standard section
  • I-sections as custom
  • Flat steel as a standard profile
  • Flat steel custom


  • Equal-leg and unequal-leg angles as standard cross-section or as custom cross-section


  • Design internal forces from shear force Vzd
  • Multiple design internal force combinations can be entered

Different bolts can be selected for the main beam and the secondary beam.

  • Bolts (black bolts and fitted bolts)
  • Sizes: M12, M16, M20, M22, M24, M27, M30, M36
  • Strength classes: 4.6, 5.6, 8.8, 10.9

The program provides all the necessary verifications according to the selected design standard:

  • Verification of bolts in shear
  • Verification of bearing (main beam, secondary beam, angle)
  • Block tearing
  • Verfication of contact pressure
  • Verification of notch of the secondary beam
  • Cross-sectional verification angle
Document file formats
  • PDF
  • Word
  • Printer
  • Brief output
  • Standard output
  • Detailed output
  • User-defined output scope
Import options
Export options
  • Word
  • PDF
  • Nexus
  • DXF-file
Transfer options

System data and load forwarding to the program Fin Plate SFB+

Steel construction
  • DIN EN 1993
  • ÖNORM EN 1993

Support resources